C31232233133313221211113313331333133313331212111133131121131232311   >>    C3123223313331322121111331333133313331333121211113313112113123231   <<    C31232233133313221211113313331333133313331212111133131121131232313   >>      C31232233133313221211113313331333133313331212111133131121131232312   >>